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Predictable results in nanoid generation when given non-integer values

Moderate severity GitHub Reviewed Published Dec 9, 2024 to the GitHub Advisory Database • Updated Dec 13, 2024

Package

npm nanoid (npm)

Affected versions

>= 4.0.0, < 5.0.9
< 3.3.8

Patched versions

5.0.9
3.3.8

Description

When nanoid is called with a fractional value, there were a number of undesirable effects:

  1. in browser and non-secure, the code infinite loops on while (size--)
  2. in node, the value of poolOffset becomes fractional, causing calls to nanoid to return zeroes until the pool is next filled
  3. if the first call in node is a fractional argument, the initial buffer allocation fails with an error

Version 3.3.8 and 5.0.9 are fixed.

References

Published by the National Vulnerability Database Dec 9, 2024
Published to the GitHub Advisory Database Dec 9, 2024
Reviewed Dec 9, 2024
Last updated Dec 13, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

EPSS score

0.045%
(17th percentile)

Weaknesses

CVE ID

CVE-2024-55565

GHSA ID

GHSA-mwcw-c2x4-8c55

Source code

Credits

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